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Engine Oil Additives Comparison - April 2026
7 Best Engine Oil Additives In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant's customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. As an Amazon Associate we may earn from qualifying purchases. We may receive a commission from purchases made through links on our site, which will help us continue to provide you with value.
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Overview: Engine oil additives are essential for keeping your vehicle running smoothly and efficiently. They help improve engine performance, reduce fuel consumption and reduce wear and tear on vital components. This page provides you with reviews of the different types of oil additives available, so you can make an informed and wise decision.
LIQUI MOLY Cera Tec 3721 I Ceramic Wear & Tear Protection for Petrol & Diesel Engines I Smoother Engine Performance, Less Friction & Lower Fuel Consumption I Ceramic Additive 300 ml Pack of 1
Model
LIQUI MOLY Cera Tec 3721 I Ceramic Wear & Tear Protection for Petrol & Diesel Engines I Smoother Engine Performance, Less Friction & Lower Fuel Consumption I Ceramic Additive 300 ml Pack of 1
Here are the top 3 recommended products with more information to help you find the right product for you
9.9
1
Liqui Moly
11% Off
LIQUI MOLY Cera Tec 3721 I Ceramic Wear & Tear Protection for Petrol & Diesel Engines I Smoother Engine Performance, Less Friction & Lower Fuel Consumption I Ceramic Additive 300 ml Pack of 1
9.3worth the money
9.3distance
9.3Simple to use
Why we love it
Extends engine lifespan effectively.
Reduces fuel consumption noticeably.
Compatible with most engine oils.
Main highlights
SMOOTHER ENGINE PERFORMANCE FROM VERY FIRST USE: An engine additive formulated with high-tech ceramic compounds, high thermal resilience. Additive ensures smoother-running engine, extending the engine’s lifespan. Can be used with manual & automatic transmissions. Not suitable for use with wet clutches.
LOWER FUEL CONSUMPTION and diminished emission of pollutants due to smoother engine operation.
EVERYTHING THAT DRIVES WORKS BETTER WITH LIQUI MOLY: We manufacture over 4,000 products: engine oils, additives, vehicle care, chemical servicing and repair, adhesives and sealing products. Our products are currently distributed to over 150 countries worldwide. They are popular everywhere, ensuring a superior driving experience and improved engine performance.
EASY TO ADD DURING OIL CHANGES: The 300 ml bottle is sufficient for up to 5 liters of engine oil. Shake well before use and add to fresh oil. Can be mixed with all gear & engine oils on the market. Long-lasting performance, up to 50,000 km.
CERTIFIED EFFECTIVENESS proven by TÜV Thüringen: Chemical components in Cera Tec smooth out rough surfaces, the ceramic particles fill in uneven surface imperfections. Prevents direct contact of all metal parts, reducing friction and wear & tear. Turbo & Cat tested.
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9.8
2
Liqui Moly
14% Off
LIQUI MOLY Cera Tec 3721 I Ceramic Wear & Tear Protection for Petrol & Diesel Engines I Smoother Engine Performance, Less Friction & Lower Fuel Consumption I Ceramic Additive 300 ml Pack of 1
9.3worth the money
9.3distance
9.3Simple to use
Why we love it
Extends engine lifespan effectively.
Reduces fuel consumption noticeably.
Compatible with most engine oils.
Main highlights
SMOOTHER ENGINE PERFORMANCE FROM VERY FIRST USE: An engine additive formulated with high-tech ceramic compounds, high thermal resilience. Additive ensures smoother-running engine, extending the engine’s lifespan. Can be used with manual & automatic transmissions. Not suitable for use with wet clutches.
LOWER FUEL CONSUMPTION and diminished emission of pollutants due to smoother engine operation.
EVERYTHING THAT DRIVES WORKS BETTER WITH LIQUI MOLY: We manufacture over 4,000 products: engine oils, additives, vehicle care, chemical servicing and repair, adhesives and sealing products. Our products are currently distributed to over 150 countries worldwide. They are popular everywhere, ensuring a superior driving experience and improved engine performance.
EASY TO ADD DURING OIL CHANGES: The 300 ml bottle is sufficient for up to 5 liters of engine oil. Shake well before use and add to fresh oil. Can be mixed with all gear & engine oils on the market. Long-lasting performance, up to 50,000 km.
CERTIFIED EFFECTIVENESS proven by TÜV Thüringen: Chemical components in Cera Tec smooth out rough surfaces, the ceramic particles fill in uneven surface imperfections. Prevents direct contact of all metal parts, reducing friction and wear & tear. Turbo & Cat tested.
Show more
9.7
3
MICRO ZX1
ZX1 EXTRALUBE MICRO OIL METAL TREATMENT 250ml
9.8distance
9.8Simple to use
9.6worth the money
Main highlights
Superior Cold Start Protection: EXTRALUBE ZX1 Micro Oil Metal Treatment provides immediate protection and smooths surfaces for better oil flow.
Long-Term Metal Protection: Protects engine surfaces for up to 25,000 miles by smoothing metal surfaces. EXTRALUBE ZX1 ensures excellent cold start protection and anti-wear performance.
Enhanced Engine Performance: Our ZX1 oil treatment bonds to metal surfaces, reducing friction and wear. This results in increased MPG and lower emissions, setting it apart from conventional oil additive.
Effortless Application: ZX1 oil treatment simply uses the oil to reach bare metal surfaces, offering unparalleled protection without altering oil properties.
Advanced Friction Eliminator: Unlike traditional oil additives for petrol engines, ZX1 oil treatment doesn't alter your oil. It bonds to metal surfaces, smoothing out the surface
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Value for money
topchoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.
When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
topchoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.
When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
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9.6 
9.9
1Liqui Moly11% Off
Extends engine lifespan effectively.
